<template>
<div class="wrapper">
<swiper :options="swiperOption" v-if="showSwiper">
    <!-- slides -->
    <swiper-slide v-for="item of list" :key="item.id">
    <img class="swiper-img" :src="item.imgUrl
    "/>
    </swiper-slide>
    <!-- Optional controls -->
    <div class="swiper-pagination"  slot="pagination"></div>
    <!-- 左右两边的小箭头 -->
    <!-- <div class="swiper-button-prev" slot="button-prev"></div>
    <div class="swiper-button-next" slot="button-next"></div> -->
    <!-- 下面的滚动条 -->
    <!-- <div class="swiper-scrollbar"   slot="scrollbar"></div> -->
  </swiper>
  </div>
</template>
<script>
export default {
  name: 'HomeSwiper',
  props: {
    list: Array
  },
  data () {
    return {
      swiperOption: {
        pagination: '.swiper-pagination',
        loop: true
      }
    }
  },
  computed: {
    showSwiper () {
      return this.list.length
    }
  }
}
</script>
<!-- 如果想实现宽高比例自适应的话，需要按照以下wrapper的样式写，这里的31.25%是宽高比 -->
<style lang="stylus" scoped>
.wrapper >>> .swiper-pagination-bullet-active
  background: #fff
.wrapper
  overfow: hidden
  width: 100%
  height: 0
  padding-bottom: 31.2%
  background: #ccc
  .swiper-img
    width: 100%
</style>
